On Mittwoch, 13. September 2017 15:46:09 CEST Jakub Jelinek wrote: > On Wed, Sep 13, 2017 at 03:41:19PM +0200, Richard Biener wrote: > > On its own -O3 doesn't add much (some loop opts and slightly more > > aggressive inlining/unrolling), so whatever it does we > > should consider doing at -O2 eventually. > > Well, -O3 adds vectorization, which we don't enable at -O2 by default. > Would it be possible to enable basic block vectorization on -O2? I assume that doesn't increase binary size since it doesn't unroll loops.
'Allan
